Connecting Assembly

a technology of connecting parts and assembly parts, applied in the direction of fastening means, vehicle components, vehicle sub-unit features, etc., can solve the problems of reducing product qualification, reducing product qualification, and reducing the disassembly of assembly by using fasteners in a destructive way

Inactive Publication Date: 2018-08-30
CO PLASTIC OMNIUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a connecting assembly for a vehicle that includes a first member and a second member. The first member has limiting ribs that match with reinforcement ribs on the second member, which helps to control the deformation of the second member and ensures a better appearance and customer satisfaction. The reinforcement rib of the second member has a width less than one third of its thickness, which prevents sink marks on the backside of the reinforcement rib. The connecting assembly has the advantage of realizing the overall control of the match between the first and second members, even when the second member has thermal expansion. The assembly and disassembly force can be adjusted according to different products requirements by modifying the size of the gaps between the limiting ribs and the spacing elements in the Y direction.

Problems solved by technology

This mechanism complicates the mold structure since lifter or slider is required during the molding; at the same time, Doghouse structure is designed directly on the B surface (back surface) of the running boards, there is a big risk of producing a sink mark on the A surface (front surface), which in turn reduces the product qualification; finally, the assembly by using fasteners can only be disassembled in a destructive way.
Such a design may result in the following three problems: 1) welding rib may rise the risk of producing a sink mark on the A surface, which in turn reduces the product qualification; 2) the running board welded to the inner panel can only be disassembled in a destructive way; and 3) the inner panel is welded onto an outer panel and then the inner panel and the outer panel as an assembly are installed onto the metal sheet parts of the vehicle body, which increases the gross weight and does not facilitate assembly.
However, current running boards of the same structure have the defects that the running boards tend to deform when heated, and the assembly and disassembly force cannot be effectively controlled.

Method used

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Embodiment Construction

[0030]The preferred embodiments of the present invention will be provided and described in detail with reference to the drawings so as to facilitate the understanding of the functions and features of the present invention.

[0031]The present invention provides a connecting assembly for a vehicle body part, and more particularly in this embodiment a vehicle running board assembly, comprising a running board 1 (the second member) and an inner panel 2 (the first member), the running board 1 is installed to the sheet metal parts of the vehicle body through the inner panel 2, wherein the structures of the running board 1 and the inner panel 2 are shown in FIGS. 1 and 2 respectively. It could be understood that other examples of such a connecting assembly of another vehicle body part also fall into the protection scope of the present invention.

[0032]The inner panel 2 comprises: at least one rectangular pierced structure 21, a cantilever snap 22 extending from the bottom edge of the rectangu...

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Abstract

The present invention provides a connecting assembly including a first member and a second member, the first member having at least one rectangular pierced structure, a cantilever snap extending along the Y direction from a bottom edge of the rectangular pierced structure, and a limiting rib extending along the X direction from the lateral edge of the rectangular pierced structure; the second member having a snap structure capable of cooperating in snap-fit with the cantilever snap in the Y direction, and a plurality of reinforcement ribs arranged above the snap structure and extending along the Z direction; wherein, the two most lateral reinforcement ribs among all reinforcement ribs of the second member are arranged at the inner side of the limiting ribs of the first member and spaced apart in parallel with the limiting rib with a first gap L1 in the X direction. According to the present invention, the limiting ribs of the first member limit the position of the reinforcement ribs of the second member so as to restrict the expansion or contraction of the second member in its longitudinal direction when heated or cooled, thereby the controlling of the matching of the connecting assembly is achieved.

Description

FIELD OF INVENTION[0001]The present invention relates to the field of vehicle body part, and more particularly to a connection mechanism.BACKGROUND OF THE INVENTION[0002]Vehicle body part, for instance a running board, which is referred to as side steps located at each lateral side of the vehicle body and under side doors, and sometimes can also be designed as exterior parts for stepping, usually is made of plastic material and to be assembled with peripherals to the sheet metal parts of the vehicle body.[0003]Currently, there are two kinds of method to assemble the running boards: the first one relies on fixing the running boards directly onto the sheet metal parts of the vehicle body by using fasteners, which are mounted in Y direction (transversal direction of the vehicle) and Z direction (vertical direction of the vehicle), such design is typically used by General Motors or Shanghai Automotive Industry Corporation; the second one relies on assembling the running boards onto the ...

Claims

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Application Information

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IPC IPC(8): F16B5/06B60R3/00
CPCF16B5/0692B60R3/002B60Y2410/113F16B5/0664
InventorTAN, CHAODONGZHU, XIAOJUNSU, JIANGANGMA, ZHONGYU
OwnerCO PLASTIC OMNIUM